<template>
  <div class="login_container">
    <!-- 头像区域 -->
    <div class="avater_box">
      <img src="../assets/logo.jpeg" alt />
    </div>
    <div class="login_box">
      <!-- 表单区域 -->
      <div>
        <el-form ref="loginFormRef" label-width="0px" :rules="loginFormRules" class="login_form" :model="loginForm">
          <!-- 用户名 -->
          <el-form-item prop="username">
            <el-input v-model="loginForm.username"  prefix-icon="iconfont icon-user"></el-input>
          </el-form-item>
          <!-- 密码 -->
          <el-form-item prop="password">
            <el-input v-model="loginForm.password" type="password"  prefix-icon="iconfont icon-3702mima"></el-input>
          </el-form-item>
          <!-- 按钮区域 -->
          <el-form-item class="btns">
            <el-button type="primary" @click="login">登录</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
          </el-form-item>
        </el-form>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  data () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符之间', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登录失败')
        this.$message.success('登录成功')

        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-image: url(../assets/bgp.jpg);
  background-repeat:no-repeat;
  background-size: 100% 100%;
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: rgba(255,255,255,0.5);
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
}
.avater_box {
    height: 100px;
    width: 100px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%,25%);
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;

    }
  }
  .btns {
    display: flex;
    justify-content: flex-end;
  }
  .login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
  }
</style>
